Method of Determining the Concentration of an Analyte in a Body Fluid and System Therefor
First Claim
Patent Images
1. A method of obtaining a body fluid sample for determining the concentration of an analyte in the body fluid sample, the method comprising the acts of:
- applying pressure to the skin of a user;
stretching the skin so as to create a tear in the skin such that the applied pressure causes the body fluid to flow from the tear; and
collecting the body fluid flowing from the tear.
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Abstract
A method of obtaining a body fluid sample for determining the concentration of an analyte in the body fluid sample comprises applying pressure to the skin of the user. The skin is stretched so as to create a tear in the skin such that the applied pressure causes the body fluid to flow from the tear. The body fluid flowing from the tear is collected. Disclosed is also a pressure member for applying pressure to and stretching skin in preparation for forming a tear in the skin.
43 Citations
75 Claims
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1. A method of obtaining a body fluid sample for determining the concentration of an analyte in the body fluid sample, the method comprising the acts of:
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applying pressure to the skin of a user;
stretching the skin so as to create a tear in the skin such that the applied pressure causes the body fluid to flow from the tear; and
collecting the body fluid flowing from the tear. - View Dependent Claims (4, 5, 6, 7)
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8. A method of obtaining a body fluid sample for determining the concentration of an analyte in the body fluid sample, the method comprising the acts of:
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applying pressure to the skin of a user;
stretching the skin;
heating the skin at the site of the pressure to create a tear in the skin such that the pressure causes the body fluid to flow from the tear; and
collecting the body fluid flowing from the tear. - View Dependent Claims (11, 12, 13, 14, 15, 17, 19, 20, 21)
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22. A method for use in determining an analyte concentration in a body fluid sample, the method comprising the acts of:
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applying a multilayer film on an area of skin with a cup having a first end adapted to hold the multilayer film, the multilayer film including a collection layer and a mediation layer including mediation material;
stretching the area of the skin by contacting the area of skin with the first end of the cup;
directing energy from an electromagnetic source onto the multilayer film such that the mediation material converts the energy from the electromagnetic source to thermal energy to form an aperture in the multilayer film and a tear in the skin;
applying pressure to the area of the skin surrounding the tear to cause body fluid to flow from the tear and through the aperture to an upper surface of the multilayer film; and
collecting a volume of the body fluid on the upper surface of the multilayer film while the cup remains in contact with the area of skin.
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- 36. A pressure member for applying pressure to and stretching skin in preparation for forming a tear in the skin and collecting a body fluid sample for analysis of at least one analyte concentration, the pressure member comprising a body formed of resilient material, at least a portion of the body being a film, the film comprising at least a gelatin layer having mediation material.
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- 42. A pressure member for applying pressure to and stretching skin in preparation for forming a tear in the skin and collecting a body fluid sample for analysis of at least one analyte concentration, the pressure member comprising a body formed of resilient material, at least a portion of the body being a multilayer film, the multilayer film comprising at least a collection layer and a mediation layer, the collection layer and the mediation layer being adjacent to each other.
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56. A pressure member for applying pressure to and stretching skin in preparation for forming a tear in the skin and collecting a body fluid sample for analysis of at least one analyte concentration, the pressure member comprising a body and a multilayer film, the body being formed of resilient material, the multilayer film comprising at least a collection layer and a mediation layer, the collection layer and the mediation layer being adjacent to each other, the multilayer film being detachably connected to the body.
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Specification